| // Copyright 2015 The Crashpad Authors. All rights reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #ifndef CRASHPAD_UTIL_MISC_TIME_H_ |
| #define CRASHPAD_UTIL_MISC_TIME_H_ |
| |
| #include <stdint.h> |
| #include <sys/time.h> |
| #include <time.h> |
| |
| #include "build/build_config.h" |
| |
| #if defined(OS_WIN) |
| #include <windows.h> |
| #endif |
| |
| namespace crashpad { |
| |
| constexpr uint64_t kNanosecondsPerSecond = static_cast<uint64_t>(1E9); |
| |
| //! \brief Add `timespec` \a ts1 and \a ts2 and return the result in \a result. |
| void AddTimespec(const timespec& ts1, const timespec& ts2, timespec* result); |
| |
| //! \brief Subtract `timespec` \a ts2 from \a ts1 and return the result in \a |
| //! result. |
| void SubtractTimespec(const timespec& ts1, |
| const timespec& ts2, |
| timespec* result); |
| |
| //! \brief Convert the timespec \a ts to a timeval \a tv. |
| //! \return `true` if the assignment is possible without truncation. |
| bool TimespecToTimeval(const timespec& ts, timeval* tv); |
| |
| //! \brief Convert the timeval \a tv to a timespec \a ts. |
| void TimevalToTimespec(const timeval& tv, timespec* ts); |
| |
| #if defined(OS_WIN) || DOXYGEN |
| |
| //! \brief Convert a `timespec` to a Windows `FILETIME`, converting from POSIX |
| //! epoch to Windows epoch. |
| FILETIME TimespecToFiletimeEpoch(const timespec& ts); |
| |
| //! \brief Convert a Windows `FILETIME` to `timespec`, converting from Windows |
| //! epoch to POSIX epoch. |
| timespec FiletimeToTimespecEpoch(const FILETIME& filetime); |
| |
| //! \brief Convert Windows `FILETIME` to `timeval`, converting from Windows |
| //! epoch to POSIX epoch. |
| timeval FiletimeToTimevalEpoch(const FILETIME& filetime); |
| |
| //! \brief Convert Windows `FILETIME` to `timeval`, treating the values as |
| //! an interval of elapsed time. |
| timeval FiletimeToTimevalInterval(const FILETIME& filetime); |
| |
| //! \brief Similar to POSIX `gettimeofday()`, gets the current system time in |
| //! UTC. |
| void GetTimeOfDay(timeval* tv); |
| |
| #endif // OS_WIN |
| |
| #if defined(OS_LINUX) || defined(OS_CHROMEOS) || defined(OS_ANDROID) || DOXYGEN |
| //! \brief Get the kernel boot time. Subsequent calls to this function may |
| //! return different results due to the system clock being changed or |
| //! imprecision in measuring the boot time. |
| //! \return `true` on success. Otherwise, `false` with a message logged. |
| bool GetBootTime(timespec* ts); |
| #endif // OS_LINUX || OS_CHROMEOS || OS_ANDROID || DOXYGEN |
| |
| } // namespace crashpad |
| |
| #endif // CRASHPAD_UTIL_MISC_TIME_H_ |